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i J. B. GLYNE.

AUTOMATIC FEED MECHANISM FOR GHUGKS.

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NITED' STATES ATENT JAMES B. OLYNE, OF CLEVELAND, OHIO, ASSIGNOR TO THOMAS H. lVHITE,

I OF SAME PLACE.

AUTOMATIC FEED MECHANESM FOR CHUCKS.

"'SPECIFICATION formingpart of Letters Patent No. 447,144, dated February 24, 1891.

Application filed March 5, 1890. Serial No. 342,730. (No model.)

To all whom it may concern: and in its intermittently-rotative movement Be it known that I, JAMES B. OLYNE, of on its axis. Slide A is for attaching side Cleveland, in the county .of Ouyahoga and tools, this slide being operated automatically State of Ohio, have invented certain new and orbyhand, according to circumstances. This useful Improvements in Automatic Feed mechanism is well known, and the foregoing Mechanism for Chucks; and I dghereby debrief description is believed to be sufficient clarc the following to be a full, clear, and eX- to show the connection and operation thereof act description of the invention, such as will with my improvements, which are as follows: enable others skilled in the art to which it D is an upright container-magazine or feed- :0 pertains to make and use the same. box, the latter having a vertical chamber,

My invention relates to improvements in open top and bottom and adapted to receive automatic feed mechanism for-chucks; and it loosely the blank, so that the latter will deconsists in certain features of construction scend therein by gravity, and hence this feedand.in combination of parts hereinafter debox and the internal chamber thereof may 15 scribed, and pointed outin the claim. vary indefinitely, according to the size and In the accompanying drawings, Figure 1 is shape of the blank. The blanks are usually a side elevation,'partly in section. Fig. 2 is round disks, with likely a hub that requires an end view in section on line :0 :0, Fig. 1. to be turned, faced, and bored. Thus far 1 Figs. 3 and 4 are side and front elevation of have attached the feed-box to l'athes that 2 the feed-box and attachments detached. Figs. were already in use, and for supporting the 5 and 6 are details of the chuck, the former feed-box I have employed bentarm a these being a longitudinal section and the latter arms being attached to the sides of the headbeing an end elevation. Fig. 7 is a plan in block. For new lathes some provision would detail. Fig. 8 is an end elevation, and Fig. likely be provided for attaching the feed-box 25 9 is a side elevation in detail. Fig. 10 is a to some projecting member of the headview in perspective of a blank shown only block. as a sample. The cut-out mechanism for discharging the A represents the ways of a turret-lathe; A, blanks one at a time from the feed-box is as the turret; A ,a cross-slide, and A the headfollows: A tilting lever D is pivoted, for in- 3 block. stance, at D to the feed-box. This lever has B represents a hollow spindle, to which is a lateral arm D projecting toward the turattached a chuck O. The chuck has a reret. The tilting lever, at or near the lower movable face-plate O, and has jaws c for end thereof, is provided with a rigid pin cl, grasping the work, the elastic shanks of these the latter, in the normal position of the tilt- 35 jaws being integral at the inner end thereof. ing lever, being adapted to extend under the The face-plate has a conical bore 0, the line of the chamber of the feed-box to hold larger end thereof presenting inward, and the blanks from falling out. The upper memthe jaws are closed upon the Work by being ber of the tilting lever and lug D of the arm forced forward against the conical walls of D are pierced for receiving a pin d. loosely,

4 the face place by means of sleeve B, and the this pinbeing provided with a collar d rig- 9o jaws backing and opening by the recoil of idly secured thereto, and between this collar the jaw-shanks with the reverse movement and lug D is located a spring (1 preferably of this sleeve. Sleeve B operates in the bore coiled around the pin and bearing against the of the spindle, and a rod 1) operates in the collar and against thelug, the tension of this .45 bore of the sleeve for dischaging the work spring holding pin d normally thrust as far from the chuck when the jaws thereof open. toward the feed-box as the engagement of The turret is provided witha series of radial collar (1 with the tilting lever will admit. holes a for introducing different tools, the Arm D is provided with inclined face D turret being automatically actuated both in for operating the cut-out. A spring d is 5 its reciprocations toward and from the chuck, fastened to the face of the feed-box, the free end of this spring bearing against the upper section and inner face of the tilting lever for holding this end of the tilting lever normally away from the feed-box, in which position of parts the pin cl extends under the feed-box and pin (1' is withdrawn so far as not to obstruct the passage of the blanks through the feed-box. By raising the arm D the lever D is tilted in the direction to thrust pin (1' into the chamber of the feedbOX and to withdraw pin d, thus cutting out the lower blank and allowing it to fall from the feed-box. In case the blanks are of such shape that pin (1 cannot enter between the first and second blanks from the bottom of the fced'box the pin will engage the second blank, and by such engagement will be snubbed back against the action of spring (Z, in which case the tension of this spring will cause pin d to bear against the blank with sufiicient force to hold the blanks from falling until such time as the tilting lever, by the action of spring (1, is returned to its normal position.

The (levice for receiving the blank discharged from the feed-box and delivering the same to the chuck is as follows: E is a small shaft or mandrel, the one end thereof being inserted in one of the holes a, of the turret. On shaft E is mounted with an easy fit sleeve (l. The sleeve is provided with a slot g, in which slot operates an upright pin 6, the latter being an attachment of shaft E.

E is a spring coiled around the shaft and located between the turret and the sleeve and bearing against each, the tension of this spring tending to hold the sleeve as far away from the turret as the engagement of pin 6 with the inner end wall of slot 9 will admit, in which normal position of the sleeve thehead G thereof overhangs shaft E. Head G is provided with a recess G adapted to receive the blank, this recess being open at the top and at the ends of the sleeve. (See Figs. 7 and S.)

In operating the machine, the jaws of the chuck having been opened and the work discharged thereform, and the turret having been turned in such posit-ion that shaft E presents toward the chuck, the turret is then advanced so as to bring the head of the sleeve under the feed-box in position for a blank to descend into the recess G To prevent the sleeve from engaging the face-plate of the chuck, and thereby causing friction and wear, the sleeve is provided with a pin g that by engaging stop a of slide A holds the sleeve slightly separated from the face-plate. Meantime pin e, by engaging incline D tilts lever 1 D, and thereby discharges a blank from the feed-box into recess G whereupon the f urther advance of the turret causes shaft E to force the blank into the chuck, such further advance of th eturret, of course, com pressing spring E. \Vith the reverse movement of the turret the parts return to their normal position. As aforesaid, cross-slide A is for attaching side tools, the latter being sometimes attached to the back end and sometimes to the front end of the slide, according to the nature of the work; but this slide necessarily remains at rest either in its rearward or forward position while the blank is being fed to the chuck. Stop a therefore, comprises a narrow strip of metal attached so far to the one side of the slide that it is out of the way in attaching tools to the slide, this stop being of such length that it will engage pin g in whichever position the slide happens to be. Vvith such construction the feed mechanism hereinbefore described does not interfere in the least with the legitimate use of the crossslide, and as the blanks descend by gravity through the chamber of the feed-box these blanks may be supplied from time to time without stopping the lathe, the feed-box usu' ally being of such length as to hold a goodly number of blanks at a time.

The details of construction may be varied more or less without departing from the spirit and purpose of my invention. For instance, flat or other than coiled springs might be substituted for springs (Z and E, and a coil-spring might take the place of spring (1; also, various changes might be necessary in adapting the device to the various turretlathes, and such changes will readily suggest themselves to the builder.

\Vhat I claim is- The combination, with upright feed-box and cut-out mechanism consisting, essentially, of a tilting lever carrying two stops or projections, one of which is yieldingly held in position, of a shaft projecting laterally from the lathe-turret, a spring-actuated sleeve mounted 011 such shaft, such sleeve having a recess adapted to receive the blanks discharged from the feed-box, the shaft having a projecting member adapted to actuate the tilting lover of the feed-box, substantially as and for the purpose set forth.

In testimony whereof I sign this specifiea tion, in the presence of two witnesses, this 3d day of February, 1890.

JAMES B. CLYNE.

\Vitnesses:

CHAS. [-1. Donna, WILL 13. SAGE. 

